trill timer hello

Use trill timer hello to configure the Hello interval.

Use undo trill timer hello to restore the default.

Syntax

trill timer hello interval

undo trill timer hello

Default

The Hello interval is 10 seconds.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an interval in the range of 1 to 255 seconds.

Usage guidelines

The RB advertises Hello frames at the Hello interval to maintain a TRILL adjacency. The shorter the Hello interval, the faster the network convergence. However, a shorter Hello interval consumes more system resources.

This command sets the Hello interval for an RB. The Hello interval of a DRB is 1/3 of the Hello interval of an RB. This allows for DRB failures to be quickly detected.

The adjacency holding time is obtained by multiplying the Hello interval by the Hello multiplier. The RB advertises the adjacency holding time to neighbors through Hello frames. If a neighbor does not receive any Hello frames from the RB within the adjacency holding time, it removes the TRILL adjacency with the RB.

The adjacency holding time cannot exceed 65535 seconds.

Configuration in Layer 2 Ethernet interface view takes effect only on the current port. Configuration in Layer 2 aggregate interface view takes effect on the current interface and its member ports. Configuration on the member port of an aggregate interface takes effect after the member port leaves the aggregation group.

Examples

# Set the Hello interval to 20 seconds on .

<Sysname> system-view
[Sysname] interface 
[Sysname-] trill timer hello 20

Related commands

trill timer holding-multiplier